“Six of those now-famous paintings survive, five in public collections … Alas for aficionados, those five publicly held Sunflowers are scattered over three continents and have never been seen together. But Thursday morning, their isolation ended, so to speak, when a ‘virtual exhibition’ reunited the Arles Sunflowers on Facebook in a single cyber-gallery – dubbed Sunflowers 360 – creating the illusion that they are hanging in a single space.”